Corrugated beam barrier must be designed for the height of rock.

The installation of corrugated beam barrier on rural roads depends on whether the road side faces water and cliffs and the relative height difference is more than 3m. According to the technical specification for highway design, rural roads can be equipped with corrugated guardrail in the cliff-facing section near the water (the water depth is more than 1m all the year round) and the relative height difference along the road is more than 3m, and various security facilities such as anti-collision wall and pier can also be installed according to the degree of danger.